How to do it…

First, we're going to watch our system boot.

Start by disabling the quiet option in our boot configuration so that we can actually see information on our VM display:

$ sudo sed -i 's/ quiet//g' /etc/sysconfig/grub

Now, we need to generate a new grub configuration file, as we've made a change:

$ sudo grub2-mkconfig | sudo tee /boot/grub2/grub.cfg
The previous code is a good example of what you would do if someone asked you to make a grub configuration change, a surprisingly common action.

Now, bring up the VirtualBox main window, and double-click your VM so, you can see the black console:

Bring up your Terminal connection so that ...

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